Computer Science
Scientific paper
Mar 1973
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973moon....7..181t&link_type=abstract
The Moon, Volume 7, Issue 1-2, pp. 181-195
Computer Science
3
Scientific paper
The principal rock types in the highlands are highland basalt (gabbroic anorthosite) with 28% Al2O3 and low K Fra Mauro basalt with 18% Al2O3. The chemistry of the highland soils and breccias can be represented by simple mixing models involving these rock types as major constituents. The mixing occurred during the intense highland cratering. Layering observed at the Apennine Front is interpreted as produced the Serenitatis basin collision. The plains-forming Cayley Formation and the Descartes Formation are not volcanic, but are derived from pre-existing highland crust. Although the overall chemical composition of the Moon has been affected by pre-accretion processes (e.g. loss of volatile elements), the composition of the highlands is mainly the result of postaccretion melting and element fractionation. Thus the individual rock types show involatile element distribution patterns, relative to primitive abundances, indicative of solid-liquid equilibria, evidence of post-accretion lunar igneous activity. The chemistry of the primitive green glass component (15426) indicates that the abundance of the involatile elements (REE, Ba, Zr, Hf, Th and U) in the source regions is at most only 2 3 times the abundances in chondrites.
No associations
LandOfFree
Geochemistry of the Lunar Highlands does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Geochemistry of the Lunar Highlands, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geochemistry of the Lunar Highlands will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1639281